Finding the Fourth Proportional to 547,328.70, 755,306.64 and 305,615.52
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Solution
The fourth proportional to 547,328.70, 755,306.64 and 305,615.52 is: 421,745.53
Step by Step Solution
- Step 1: Write the proportion equation
547,328.70 : 755,306.64 = 305,615.52 : x - Step 2: Convert to fraction form
547,328.70/755,306.64 = 305,615.52/x - Step 3: Cross multiply
547,328.70x = 755,306.64 × 305,615.52 - Step 4: Simplify right side
547,328.70x = 230,833,431,543.05 - Step 5: Solve for x
x = 230,833,431,543.05/547,328.70 - Step 6: Final answer
x = 421,745.53
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.